Finding the Fourth Proportional to 118,600.96, 163,666.52 and 64,886.42

Step by Step Solution

1. Step 1: Write the proportion equation
   118,600.96 : 163,666.52 = 64,886.42 : x
2. Step 2: Convert to fraction form
   118,600.96/163,666.52 = 64,886.42/x
3. Step 3: Cross multiply
   118,600.96x = 163,666.52 × 64,886.42
4. Step 4: Simplify right side
   118,600.96x = 10,619,733,720.77
5. Step 5: Solve for x
   x = 10,619,733,720.77/118,600.96
6. Step 6: Final answer
   x = 89,541.72